CN104157292A - Anti-howling audio signal processing method and device thereof - Google Patents
Anti-howling audio signal processing method and device thereof Download PDFInfo
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Abstract
The invention provides an anti-howling audio signal processing method and a device thereof. The anti-howling audio signal processing method comprises a step of receiving a singing request which comprises the identification of a song to be sung, obtaining a background audio signal corresponding to the identification of the song to be sung, a step of obtaining a far end reference signal and a near end input signal, carrying out howling suppression processing on the near end input signal according to the far end reference signal and obtaining a first audio signal, and a step of mixing the first audio signal and the background audio signal to obtain a second audio signal. According to the embodiment of the invention, the near end input signal is subjected to the howling suppression processing, the howling generated in a speaking amplification environment is effectively suppressed, the scene of a commercial karaoke room can be simulated really, and a user enjoys the function of karaoke at any time.
Description
Technical field
The embodiment of the present invention relates to the communication technology, relates in particular to a kind of anti-utter long and high-pitched sounds acoustic signal processing method and device.
Background technology
Along with the function of smart mobile phone from strength to strength, abundant multimedia function becomes a large feature that attracts consumer.Wherein, realize in abundant multimedia function at this by smart mobile phone, use smart mobile phone sing karaoke to be extremely subject to consumer's welcome, still, most of mobile phone of existing market all can only have on earphone sing karaoke, does not have the outer Kara OK function of putting.
Fig. 1 is the karaoke OK system theory diagram for mobile terminal in prior art, as shown in Figure 1, this karaoke OK system comprises microprocessor 10, storer 11, human-computer interaction device, audio process 14, frequency modulation wireless transmitter 17, audio-frequency power amplifier 18 and left and right sound channels loudspeaker; Wherein, microprocessor 10 comprises control module 15 and audio coding decoding unit 16; Human-computer interaction device comprises keyboard 12, display 13 and microphone 19.Concrete, this implementation of karaoke OK system that is used for mobile terminal is as follows: by the Hi-vision music net (MusicTelevision anticipating, being called for short MTV) file is by USB (universal serial bus) (Universal Serial Bus, be called for short USB) deposit storer 11 in, microprocessor 10 sends audio process 14 to by audio-frequency bus I2S after the voice signal reading from storer 11 is decoded into background audio signals and original singer's sound signal.The sound signal that audio process 14 is sung the voice of receiving from microphone 19 is carried out audio mixing with background audio signals, sound signal after audio mixing can be sent on another public address equipment being connected with wireless mode for the karaoke OK system of mobile terminal with this and be play by frequency modulation wireless transmitter 17, or, also can amplify the sound signal of audio process output by audio-frequency power amplifier 18, promote left and right sound channels loudspeaker and play, thereby realized mobile terminal and put the function of Karaoke outward.
But, put outside and amplify in environment, the sound signal that loudspeaker is play can be again picked, amplify and play through audio-frequency power amplifier again, form winding, utter long and high-pitched sounds thereby be very easy to produce, and then make playback or recording not in same sound field, or tone playing equipment and sound pick-up outfit must be distant, limited application scenarios.
Summary of the invention
The embodiment of the present invention provides a kind of anti-utter long and high-pitched sounds acoustic signal processing method and device, has effectively suppressed outer the uttering long and high-pitched sounds of producing in the environment that amplifies of putting, and can sing the scene of putting by real simulate commercial K, allows user enjoy at any time K Nikkei interest.
One aspect of the present invention provides a kind of anti-acoustic signal processing method of uttering long and high-pitched sounds, and comprising:
Receive program request request, described program request request comprises the mark of song to be requested tune; And obtain the background audio signals corresponding with the mark of song described to be requested tune;
Obtain far-end reference signal and near end input signal, according to described far-end reference signal, described near end input signal is uttered long and high-pitched sounds and suppressed to process, obtain the first sound signal; Wherein, the input signal that described far-end reference signal is loudspeaker; Described near end input signal is the output signal of microphone;
Described the first sound signal and described background audio signals are carried out to stereo process, obtain the second sound signal.
In the first possibility implementation of first aspect, described according to described far-end reference signal, described near end input signal is uttered long and high-pitched sounds and suppressed to process, obtain the first sound signal, comprising:
On audio frequency Treated Base or digital signal processing DSP layer, according to described far-end reference signal, described near end input signal is uttered long and high-pitched sounds and suppressed to process, obtain the first sound signal.
May implementation in conjunction with the first of first aspect present invention, in the second of first aspect may implementation, described in obtain the background audio signals corresponding with the mark of song described to be requested tune, comprising:
The song information of song to be requested tune described in obtaining according to the mark of song described to be requested tune, and to described song information decoding, to obtain described background audio signals.
May implementation in conjunction with the second of first aspect present invention, in the third of first aspect may implementation, described described the first sound signal and described background audio signals are carried out to stereo process, comprising:
Described the first sound signal and described background audio signals are carried out to stereo process on audio frequency downlink.
In conjunction with the third possibility implementation of first aspect, in the 4th kind of possibility implementation of first aspect, described broadcasting the second sound signal, specifically comprises:
Described the second sound signal is sent on outside public address equipment to play by audio signal wire or wireless launcher; Or,
Described the second sound signal is play by loudspeaker.
Second aspect present invention provides a kind of anti-audio signal processor of uttering long and high-pitched sounds, and comprising:
Receiver module, for receiving program request request, described program request request comprises the mark of song to be requested tune;
Acquisition module, for obtaining the background audio signals corresponding with the mark of song described to be requested tune;
Described acquisition module, also for obtaining far-end reference signal and near end input signal; Wherein, the input signal that described far-end reference signal is loudspeaker; Described near end input signal is the output signal of microphone;
Processing module, for according to described far-end reference signal, utters long and high-pitched sounds and suppresses to process described near end input signal, obtains the first sound signal; And described the first sound signal and described background audio signals are carried out to stereo process, obtain the second sound signal.
In the first possibility implementation of second aspect, described processing module, specifically for:
On audio frequency Treated Base or digital signal processing DSP layer, according to described far-end reference signal, described near end input signal is uttered long and high-pitched sounds and suppressed to process, obtain the first sound signal; And described the first sound signal and described background audio signals are carried out to stereo process, obtain the second sound signal.
In conjunction with second aspect first in may implementation, in the second of second aspect may implementation, described acquisition module, comprising:
Song information acquiring unit, the song information of song to be requested tune described in obtaining for the mark of song to be requested tune described in basis;
Decoding unit, for described song information is decoded, to obtain described background audio signals.
May implementation in conjunction with the second of second aspect, in the third of second aspect may implementation, described processing module, specifically also for:
Described the first sound signal and described background audio signals are carried out to stereo process on audio frequency downlink.
In conjunction with the third possibility implementation of second aspect, in the 4th kind of possibility implementation of second aspect, also comprise playing module, described playing module, for sending to described the second sound signal on outside public address equipment to play by audio signal wire or wireless launcher; Or,
Described the second sound signal is play by loudspeaker.
The anti-acoustic signal processing method of uttering long and high-pitched sounds that the present embodiment provides, by the mark of the song to be requested tune in the program request request receiving, obtain the background audio signals corresponding with the mark of song to be requested tune, obtain far-end reference signal and near end input signal, according to this far-end reference signal, near end input signal is uttered long and high-pitched sounds and suppressed to process, obtain the first sound signal, the first sound signal and background audio signals are carried out to stereo process, obtain the second sound signal.Owing in the present embodiment, near end input signal having been carried out to the anti-processing of uttering long and high-pitched sounds, therefore, effectively suppress outer the uttering long and high-pitched sounds of producing in the environment that amplifies of putting, even if make tone playing equipment and sound pick-up outfit distance very closely also can not produce and utter long and high-pitched sounds, can sing the scene of putting by real simulate commercial K, allow user enjoy at any time K Nikkei interest, thereby effectively improved user's Experience Degree.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the karaoke OK system theory diagram for mobile terminal in prior art;
The anti-acoustic signal processing method process flow diagram of uttering long and high-pitched sounds that Fig. 2 provides for the embodiment of the present invention one;
The anti-acoustic signal processing method process flow diagram of uttering long and high-pitched sounds that Fig. 3 provides for the embodiment of the present invention two;
The structural representation of the anti-audio signal processor of uttering long and high-pitched sounds that Fig. 4 provides for the embodiment of the present invention five;
The structural representation of the anti-audio signal processor of uttering long and high-pitched sounds that Fig. 5 provides for the embodiment of the present invention seven;
The theory diagram of the anti-audio signal processor of uttering long and high-pitched sounds that Fig. 6 provides for the embodiment of the present invention nine.
Embodiment
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The anti-acoustic signal processing method process flow diagram of uttering long and high-pitched sounds that Fig. 2 provides for the embodiment of the present invention one.This anti-acoustic signal processing method of uttering long and high-pitched sounds is mainly used in the scene of sing karaoke in portable mobile termianl, and executive agent can be smart mobile phone, but not as limit.As shown in Figure 2, the anti-acoustic signal processing method of uttering long and high-pitched sounds of the present embodiment comprises the following steps.
Step 101, reception program request request, program request request comprises the mark of song to be requested tune.
In the present embodiment, the mark of song to be requested tune can be the song name of song to be requested tune, the lyrics, key word, performance singer name etc., but not as limit.
Step 102, obtain the background audio signals corresponding with the mark of song to be requested tune.
In the present embodiment, song to be requested tune comprises original singer's voice signal and background audio signals, when program request song, need to obtain the background audio signals corresponding with the mark of song to be requested tune.
Step 103, obtain far-end reference signal and near end input signal, according to far-end reference signal, near end input signal is uttered long and high-pitched sounds and suppressed to process, obtain the first sound signal.
Wherein, the input signal that far-end reference signal is loudspeaker; Near end input signal is the output signal of microphone.
In the present embodiment, for instance, far-end reference signal is the input signal of loudspeaker, the sound signal of playing in loudspeaker, near end input signal is the sound signal that microphone collects, and the sound signal that microphone collects is the feedback signal that near end input signal comprises the sound signal of voice signal, ambient environment audio signal, loudspeaker broadcasting.When far-end reference signal does not exist, be while exporting without any sound signal in loudspeaker, in the sound signal that microphone collects, there is no the feedback signal of the sound signal of loudspeaker broadcasting, thereby do not exist and utter long and high-pitched sounds, because far-end reference signal does not exist, also can not utter long and high-pitched sounds and suppress to process near end input signal; When there being far-end reference signal, be while having sound signal output in loudspeaker, in the sound signal that microphone collects, there is the feedback signal of the sound signal of loudspeaker broadcasting, can produce and utter long and high-pitched sounds, therefore, in the time getting far-end reference signal, according to far-end reference signal, near end input signal is uttered long and high-pitched sounds and suppressed to process, obtain the first sound signal.
It should be noted that, the microphone in the present embodiment is mainly the microphone that mobile terminal carries, but not as limit.
In the present embodiment, to suppress disposal route as example based on uttering long and high-pitched sounds of feedback signal spectrum estimation, describe the technical scheme of the present embodiment in detail.The inhibition disposal route of uttering long and high-pitched sounds specifically comprises the following steps:
1) divide frame, windowing and Fourier transform processing near end input signal and far-end reference signal respectively, so that time-domain signal is transformed to frequency domain, obtain near-end with reference to frequency-region signal and far-end with reference to frequency-region signal;
2) according to near-end with reference to frequency-region signal and far-end with reference to frequency-region signal, calculate the mutual power spectrum between near end input signal and far-end reference signal, and calculate the power spectrum of far-end reference signal; Obtain the amplitude spectrum of feedback path divided by the power spectrum of far-end reference signal with the mutual power spectrum between near end input signal and far-end reference signal again, and utilize the amplitude spectrum of feedback path to calculate the amplitude spectrum of present frame feedback signal; Wherein, the signal (being near end input signal) that microphone collects comprises the feedback signal of the sound signal that voice signal, ambient signal and loudspeaker play, and present frame feedback signal refers to the feedback signal of the sound signal that the loudspeaker in the signal that microphone collects plays.
3) amplitude spectrum of calculating near end input signal, utilizes the amplitude spectrum of near end input signal and the amplitude spectrum calculated gains function of present frame feedback signal;
4) utilize gain function to revise near end input signal frequency spectrum;
5) domain output signal while revised near end input signal being carried out inverse Fourier transform and obtained, obtains the first sound signal.
It should be noted that, utter long and high-pitched sounds and suppress disposal route and have multiplely, those skilled in the art can select the suitable inhibition disposal route of uttering long and high-pitched sounds according to actual conditions, in the present invention not as limit.
Step 104, the first sound signal and background audio signals are carried out to stereo process, obtain the second sound signal.
The anti-acoustic signal processing method of uttering long and high-pitched sounds that the present embodiment provides, by the mark of the song to be requested tune in the program request request receiving, obtain the background audio signals corresponding with the mark of song to be requested tune, obtain far-end reference signal and near end input signal, according to this far-end reference signal, near end input signal is uttered long and high-pitched sounds and suppressed to process, obtain the first sound signal, the first sound signal and background audio signals are carried out to stereo process, obtain the second sound signal.Suppress to process owing near end input signal having been carried out uttering long and high-pitched sounds in the present embodiment, therefore, effectively suppress outer the uttering long and high-pitched sounds of producing in the environment that amplifies of putting, even if make tone playing equipment and sound pick-up outfit distance very closely also can not produce and utter long and high-pitched sounds, can sing the scene of putting by real simulate commercial K, allow user enjoy at any time K Nikkei interest, thereby effectively improved user's Experience Degree.
The anti-acoustic signal processing method process flow diagram of uttering long and high-pitched sounds that Fig. 3 provides for the embodiment of the present invention two.As shown in Figure 3, the method comprises the steps.
Step 201, reception program request request, program request request comprises the mark of song to be requested tune.
Step 202, obtain the background audio signals corresponding with the mark of song to be requested tune.
In the present embodiment, the step 101～step 102 in step 201～step 202 and above-described embodiment one is identical, repeats no more herein.
Step 203, obtain far-end reference signal and near end input signal, at audio frequency Treated Base or digital signal processing (digital signal processing, be called for short DSP) on layer, according to far-end reference signal, near end input signal is uttered long and high-pitched sounds and suppressed to process, obtain the first sound signal.
The executive agent of the present embodiment method can be function software, software is divided into application layer (Application), structural sheet (Framework), hardware abstraction layer (Hardware Abstraction Layer, be called for short HAL), drive layer (Driver) four level, there is more delays in high layer software more, for example: in the processing of Application layer, will there is more delays, audio frequency Treated Base and DSP layer are the one deck below Driver, utter long and high-pitched sounds and suppress to process at audio frequency Treated Base or DSP, postpone little, therefore, in order to reduce the delay in Audio Signal Processing and transmitting procedure, in the present invention on audio frequency Treated Base or digital signal processing layer, according to far-end reference signal, near end input signal is uttered long and high-pitched sounds and suppressed to process, obtain the first sound signal.
Step 204, the first sound signal and background audio signals are carried out to stereo process, obtain the second sound signal.
The anti-acoustic signal processing method of uttering long and high-pitched sounds that the present embodiment provides, by the mark of the song to be requested tune in the program request request receiving, obtain the background audio signals corresponding with the mark of song to be requested tune, obtain far-end reference signal and near end input signal, on audio frequency Treated Base or digital signal processing DSP layer, according to far-end reference signal, near end input signal is uttered long and high-pitched sounds and suppressed to process, obtain the first sound signal, the first sound signal and background audio signals are carried out to stereo process, obtain the second sound signal.In the present embodiment, near end input signal is carried out uttering long and high-pitched sounds and suppressed to process, effectively suppress outer the uttering long and high-pitched sounds of producing in the environment that amplifies of putting, even if make tone playing equipment and sound pick-up outfit distance very closely also can not produce and utter long and high-pitched sounds, can sing the scene of putting by real simulate commercial K, allow user enjoy at any time K Nikkei interest, and, in the present embodiment audio frequency Treated Base or or DSP layer on utter long and high-pitched sounds suppress process, reduce the delay in Audio Signal Processing process, the labile factor of all right high-level software of avoidance system, makes K song better effects if.
Further, in embodiments of the invention three, on the basis of above-mentioned each embodiment, obtain the background audio signals corresponding with the mark of song to be requested tune, specifically comprise: the song information that obtains song to be requested tune according to the mark of song to be requested tune, and to this song information decoding, with background extraction sound signal.
In the present embodiment, obtain the song information of song to be requested tune according to the mark of song to be requested tune, this song information comprises original singer's voice signal and background audio signals, in some special scenes (as sing karaoke), only need background audio signals, therefore, need to treat the decoding of program request song, to obtain corresponding background audio signals.Wherein, the method for decoding to obtain corresponding background audio signals for song to be requested tune has multiple, and those skilled in the art can select suitable coding/decoding method to carry out background extraction sound signal according to actual conditions, in the present invention, do not limit.
Further, in embodiments of the invention four, on the basis of above-mentioned each embodiment, the first sound signal and background audio signals are carried out to stereo process, comprising: the first sound signal and background audio signals are carried out to stereo process on audio frequency downlink.
In the present embodiment, in Audio Signal Processing process, it is audio frequency up-link to processing (as typing storage) this audio frequency handle link in application layer that microphone is collected to audio signal transmission; In application layer, background extraction sound signal and the first sound signal are carried out audio mixing, obtaining broadcasting this audio frequency handle link by loudspeaker after the second sound signal is audio frequency downlink, therefore, the first sound signal and background audio signals are on audio frequency downlink, to carry out stereo process.
Alternatively, after obtaining the second sound signal, also comprise: the second sound signal is sent on outside public address equipment to play by audio signal wire or wireless launcher; Or, the second sound signal is play by loudspeaker.
In the present embodiment, outside public address equipment refers to outside the equipment being positioned at for resisting the Audio Signal Processing of uttering long and high-pitched sounds, and this equipment need to be connected on other public address equipment by wireless or limited mode.The second sound signal is sent on outside public address equipment to play by audio signal wire or wireless launcher, realized mobile terminal and put the function of Karaoke outward, can sing the scene of putting by real simulate commercial K; Or the second sound signal is play by loudspeaker, and user can use portable mobile terminal sing karaoke at any time, enjoy K Nikkei interest.
The structural representation of the anti-audio signal processor of uttering long and high-pitched sounds that Fig. 4 provides for the embodiment of the present invention five.As shown in Figure 4, this device comprises: receiver module 21, acquisition module 22 and processing module 23.Receiver module 21 is for receiving program request request, and program request request comprises the mark of song to be requested tune.Acquisition module 22 is for obtaining the background audio signals corresponding with the mark of song to be requested tune.Processing module 23, for according to far-end reference signal, is uttered long and high-pitched sounds and is suppressed to process near end input signal, obtains the first sound signal; And the first sound signal and background audio signals are carried out to stereo process, obtain the second sound signal.Wherein, acquisition module 22 is also for obtaining far-end reference signal and near end input signal; Wherein, the input signal that far-end reference signal is loudspeaker; Near end input signal is the output signal of microphone.
The device of the present embodiment can be carried out the technical scheme of embodiment of the method shown in above-mentioned Fig. 2, and it realizes principle and beneficial effect is similar, repeats no more herein.
Further, in embodiments of the invention six, on the basis of above-described embodiment five, processing module 23 specifically for: on audio frequency Treated Base or digital signal processing DSP layer, according to far-end reference signal, near end input signal is uttered long and high-pitched sounds and suppressed to process, obtain the first sound signal; And the first sound signal and background audio signals are carried out to stereo process, obtain the second sound signal.
The device of the present embodiment can be carried out the technical scheme of embodiment of the method shown in above-mentioned Fig. 3, and it realizes principle and beneficial effect is similar, repeats no more herein.
The structural representation of the anti-audio signal processor of uttering long and high-pitched sounds that Fig. 5 provides for the embodiment of the present invention seven.As shown in Figure 5, acquisition module 22 comprises: song information acquiring unit 24 and decoding unit 25.Wherein, song information acquiring unit 24 is for obtaining the song information of song to be requested tune according to the mark of song to be requested tune; Decoding unit 25 is for to song information decoding, with background extraction sound signal.
The device of the present embodiment can be carried out the technical scheme of said method embodiment tri-, and it realizes principle and beneficial effect is similar, repeats no more herein.
Further, in the embodiment of the present invention eight, on the basis of above-described embodiment five to seven arbitrary embodiment, processing module 23 specifically also for: the first sound signal and background audio signals are carried out to stereo process on audio frequency downlink.
The device of the present embodiment can be carried out the technical scheme of said method embodiment tetra-, and it realizes principle and beneficial effect is similar, repeats no more herein.
Alternatively, the anti-audio signal processor of uttering long and high-pitched sounds provided by the invention also comprises playing module (not shown), and this playing module is for sending to the second sound signal on outside public address equipment to play by audio signal wire or wireless launcher; Or, the second sound signal is play by loudspeaker.
The anti-audio signal processor of uttering long and high-pitched sounds that possesses above-mentioned functions provided by the present invention can be realized in conjunction with peripheral circuit by various chips, wherein a kind of preferred embodiment is described below: the theory diagram of the anti-audio signal processor of uttering long and high-pitched sounds that Fig. 6 provides for the embodiment of the present invention nine, in this scheme, the anti-audio signal processor of uttering long and high-pitched sounds can be specially subscriber equipment, the applied system of its subscriber equipment can be: the systems such as Linux, Windows Mobile, Android, but in the present invention not as limit.
As shown in Figure 6, this user terminal comprises: primary processor 33, audio process 32, microphone 31, tone playing equipment 34 and storer 35, wherein, primary processor 33 comprises audio coding decoding unit 36 and stereo process unit 37, and audio process 32 comprises the inhibition processing unit 38 of uttering long and high-pitched sounds.
When primary processor 33 receives after program request request signal, control audio coding decoding unit 36 according to the mark of the song to be requested tune in program request request, from storer 35, obtain song to be requested tune corresponding to mark, song to be requested tune is decoded, background extraction sound signal, by this background audio signals input stereo process unit 37.Simultaneously, microphone 31 is inputted uttering long and high-pitched sounds in audio process 32 and is suppressed in processing unit 38 using the sound signal collecting as near end input signal, the inhibition processing unit 38 of uttering long and high-pitched sounds resists near end input signal the processing of uttering long and high-pitched sounds according to far-end reference signal, obtain the first sound signal, and the first sound signal is input in stereo process unit 37, this first sound signal and background audio signals are carried out to stereo process, obtain the second sound signal, this second sound signal is input to tone playing equipment on the one hand and plays, as far-end reference signal, input is uttered long and high-pitched sounds in inhibition processing unit 38 on the other hand.
Alternatively, the microphone that the microphone 31 in the present embodiment both can carry for user terminal, also can use external microphone apparatus, the main microphone that uses this user terminal to carry in the present invention; The storer that storer 35 both can carry for user terminal, also can use external memory devices, as the storer of other external units such as mobile phone, computer; The loudspeaker that tone playing equipment 34 both can carry for user terminal, can be also outside public address equipment, as external speaker etc., in the present invention not as limit.
One of ordinary skill in the art will appreciate that: all or part of step that realizes above-mentioned each embodiment of the method can complete by the relevant hardware of programmed instruction.Aforesaid program can be stored in a computer read/write memory medium.This program, in the time carrying out, is carried out the step that comprises above-mentioned each embodiment of the method; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.
Finally it should be noted that: above each embodiment, only in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these amendments or replacement do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. the anti-acoustic signal processing method of uttering long and high-pitched sounds, is characterized in that, comprising:
Receive program request request, described program request request comprises the mark of song to be requested tune; Obtain the background audio signals corresponding with the mark of song described to be requested tune;
Obtain far-end reference signal and near end input signal, according to described far-end reference signal, described near end input signal is uttered long and high-pitched sounds and suppressed to process, obtain the first sound signal; Wherein, the input signal that described far-end reference signal is loudspeaker; Described near end input signal is the output signal of microphone;
Described the first sound signal and described background audio signals are carried out to audio mixing, obtain the second sound signal.
2. method according to claim 1, is characterized in that, described according to described far-end reference signal, and described near end input signal is uttered long and high-pitched sounds and suppressed to process, and obtains the first sound signal, comprising:
On audio frequency Treated Base or digital signal processing layer, according to described far-end reference signal, described near end input signal is uttered long and high-pitched sounds and suppressed to process, obtain the first sound signal.
3. method according to claim 1 and 2, is characterized in that, described in obtain the background audio signals corresponding with the mark of song described to be requested tune, comprising:
The song information of song to be requested tune described in obtaining according to the mark of song described to be requested tune, and to described song information decoding, obtain described background audio signals.
4. method according to claim 3, is characterized in that, described described the first sound signal and described background audio signals is carried out to stereo process, comprising:
Described the first sound signal and described background audio signals are carried out to stereo process on audio frequency downlink.
5. method according to claim 4, is characterized in that, described in obtain the second sound signal after, also comprise:
Described the second sound signal is sent on outside public address equipment to play by audio signal wire or wireless launcher; Or,
Described the second sound signal is play by loudspeaker.
6. the anti-audio signal processor of uttering long and high-pitched sounds, is characterized in that, comprising:
Receiver module, for receiving program request request, described program request request comprises the mark of song to be requested tune;
Acquisition module, for obtaining the background audio signals corresponding with the mark of song described to be requested tune;
Described acquisition module, also for obtaining far-end reference signal and near end input signal; Wherein, the input signal that described far-end reference signal is loudspeaker; Described near end input signal is the output signal of microphone;
Processing module, for according to described far-end reference signal, utters long and high-pitched sounds and suppresses to process described near end input signal, obtains the first sound signal; And described the first sound signal and described background audio signals are carried out to stereo process, obtain the second sound signal.
7. device according to claim 6, is characterized in that, described processing module, specifically for:
On audio frequency Treated Base or digital signal processing DSP layer, according to described far-end reference signal, described near end input signal is uttered long and high-pitched sounds and suppressed to process, obtain the first sound signal; And described the first sound signal and described background audio signals are carried out to stereo process, obtain the second sound signal.
8. according to the device described in claim 6 or 7, it is characterized in that, described acquisition module, comprising:
Song information acquiring unit, the song information of song to be requested tune described in obtaining for the mark of song to be requested tune described in basis;
Decoding unit, for described song information is decoded, to obtain described background audio signals.
9. device according to claim 8, is characterized in that, described processing module, specifically also for:
Described the first sound signal and described background audio signals are carried out to stereo process on audio frequency downlink.
10. device according to claim 9, is characterized in that, also comprises playing module;
Described playing module, for sending to described the second sound signal on outside public address equipment to play by audio signal wire or wireless launcher; Or,
Described the second sound signal is play by loudspeaker.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104572882A (en) * | 2014-12-19 | 2015-04-29 | 广州酷狗计算机科技有限公司 | Audio data management method, server and client |
| CN106303118A (en) * | 2015-06-05 | 2017-01-04 | 福建凯米网络科技有限公司 | Intelligent terminal realizes the method for microphone function, audio frequency playing method, equipment and system |
| CN107333093A (en) * | 2017-05-24 | 2017-11-07 | 苏州科达科技股份有限公司 | A kind of sound processing method, device, terminal and computer-readable recording medium |
| US10154149B1 (en) | 2018-03-15 | 2018-12-11 | Motorola Solutions, Inc. | Audio framework extension for acoustic feedback suppression |
| CN109862474A (en) * | 2018-12-22 | 2019-06-07 | 深圳唐恩科技有限公司 | The anti-wireless chorus method uttered long and high-pitched sounds, storage medium, control device and K song are precious |
| CN110262769A (en) * | 2019-06-27 | 2019-09-20 | 联想(北京)有限公司 | A kind of data transmission method and electronic equipment |
| CN110390830A (en) * | 2019-08-08 | 2019-10-29 | 西北民族大学 | A kind of onboard system based on intelligent control and speech recognition guiding function |
| CN112908287A (en) * | 2021-01-14 | 2021-06-04 | 北京雷石天地电子技术有限公司 | Audio processing device and audio processing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200950657Y (en) * | 2006-09-01 | 2007-09-19 | 刘鉴明 | Mike audio amplifier capable of eliminating echo automatically |
| US20100107856A1 (en) * | 2008-11-03 | 2010-05-06 | Qnx Software Systems (Wavemakers), Inc. | Karaoke system |
| CN202871289U (en) * | 2012-09-07 | 2013-04-10 | 深圳市爱码芯科技有限公司 | Portable karaoke device based on MP3 format |
| US20140069261A1 (en) * | 2012-09-07 | 2014-03-13 | Eternal Electronics Limited | Karaoke system |
| CN103841278A (en) * | 2014-03-11 | 2014-06-04 | 华为技术有限公司 | Method, device and system for handling song selection |
-
2014
- 2014-08-20 CN CN201410411669.XA patent/CN104157292B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200950657Y (en) * | 2006-09-01 | 2007-09-19 | 刘鉴明 | Mike audio amplifier capable of eliminating echo automatically |
| US20100107856A1 (en) * | 2008-11-03 | 2010-05-06 | Qnx Software Systems (Wavemakers), Inc. | Karaoke system |
| CN202871289U (en) * | 2012-09-07 | 2013-04-10 | 深圳市爱码芯科技有限公司 | Portable karaoke device based on MP3 format |
| US20140069261A1 (en) * | 2012-09-07 | 2014-03-13 | Eternal Electronics Limited | Karaoke system |
| CN103841278A (en) * | 2014-03-11 | 2014-06-04 | 华为技术有限公司 | Method, device and system for handling song selection |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104572882A (en) * | 2014-12-19 | 2015-04-29 | 广州酷狗计算机科技有限公司 | Audio data management method, server and client |
| CN104572882B (en) * | 2014-12-19 | 2019-03-26 | 广州酷狗计算机科技有限公司 | Audio data management method, server and client |
| CN106303118A (en) * | 2015-06-05 | 2017-01-04 | 福建凯米网络科技有限公司 | Intelligent terminal realizes the method for microphone function, audio frequency playing method, equipment and system |
| CN107333093A (en) * | 2017-05-24 | 2017-11-07 | 苏州科达科技股份有限公司 | A kind of sound processing method, device, terminal and computer-readable recording medium |
| CN107333093B (en) * | 2017-05-24 | 2019-11-08 | 苏州科达科技股份有限公司 | A kind of sound processing method, device, terminal and computer readable storage medium |
| US10154149B1 (en) | 2018-03-15 | 2018-12-11 | Motorola Solutions, Inc. | Audio framework extension for acoustic feedback suppression |
| CN109862474A (en) * | 2018-12-22 | 2019-06-07 | 深圳唐恩科技有限公司 | The anti-wireless chorus method uttered long and high-pitched sounds, storage medium, control device and K song are precious |
| CN109862474B (en) * | 2018-12-22 | 2020-12-18 | 深圳唐恩科技有限公司 | Howling-preventing wireless chorus method, storage medium, control device and karaoke device |
| CN110262769A (en) * | 2019-06-27 | 2019-09-20 | 联想(北京)有限公司 | A kind of data transmission method and electronic equipment |
| CN110390830A (en) * | 2019-08-08 | 2019-10-29 | 西北民族大学 | A kind of onboard system based on intelligent control and speech recognition guiding function |
| CN112908287A (en) * | 2021-01-14 | 2021-06-04 | 北京雷石天地电子技术有限公司 | Audio processing device and audio processing method |
| CN112908287B (en) * | 2021-01-14 | 2023-07-04 | 北京雷石天地电子技术有限公司 | Audio processing device and audio processing method |
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